Q&A for How to Use Apple Cider Vinegar for Dogs

Dogs can drink diluted apple cider vinegar, however, it does acidify urine. In the long term, this may provide the correct environment for certain bladder stones to grow, which could have serious consequences such as a blocked bladder.

From a technical point of view, there are scant scientific papers on the subject. Looking at evidence-based medicine, there are some studies in people that show some benefits to health, but these are balanced against other studies showing no benefit. The short answer is no-one really knows.

The apple cider vinegar should be diluted with an equal volume of water. Using it as an ear cleaner is controversial because the water 'wets' the skin lining the ear which can weaken it and lead to infections. Also, don't use vinegar if the skin is inflamed or broken as it will sting and be painful for the dog.

There is no scientific recommendation for how much to apply, only anecdotal advice from owners that use it. The accepted recommendation is to dilute the ACV with an equal volume of water, and then spritz over the coat until it is damp.

The use of apple cider vinegar as an ear cleaner is controversial. Those in favor cite its antibacterial properties, and indeed certain bacteria resistant to antibiotics may be sensitive to apple cider vinegar. Those against its use point to the fact that it stings, it macerates (softens and weakens) the skin of the ear canal, and it's not in sympathy with the pH of skin. An ideal ear cleaner helps soften wax, lift away debris, and then evaporates so the ear is not left wet inside. There is a risk with apple cider vinegar that moisture stays in the ear canal, weakening the skin's normal protective function and promoting infection. Whether or not to use ACV is largely a matter of personal choice.

Avoid over-bathing your dog, as this dries out the skin. Use a moisturizing, oatmeal type shampoo. Also, plump up the baby skin cells by feeding your dog an Omega 3 or PUFA (Polyunsaturated fatty acid) supplement. This nourishes the skin from the inside out to make it more resilient and less itchy, but it takes around 4-6 weeks to notice any difference. Fish oils are superior to plant oils, and the dose is roughly 30 mg/kg, thus a 10kg dog requires around 300mg of Omega 3 daily. Also, brush your dog daily, as this improves the circulation to the skin and conditions it.